The purpose of life is the Divine Endeavor to experience challenge and creativity.
Through us, God is creating opportunities to experience Joy through accomplishment. The whole point of life is to create. We are only inspired to create when exposed to discomfort. This why the contrast MUST exist. Without the challenge, life is like spoiled children of privilege; nothing is appreciated or valued. We cannot enjoy HEAVEN until we know otherwise.

Do not lament and complain about life’s challenges; EMBRACE THEM! Address discomforts as the challenge in a game, like the fast ball coming at you! Without the fast moving projectile there would be no opportunity for a home run.
With no goalie trying to prevent us from getting the puck in the net there would be no point hitting it.

The FUN behind any sport or game, even board games,is to overcome a challenge and/or get past opposition.We get paid for work when we fix problems.The spice that gjves life flavor is the challenges

The Story of ADAM & EVE tells us how humanity left the beauty of perfection for the uncertainty of life with Good/Evil, Pain/Peace, Love/Hate because living in perpetual perfection does not offer the contrast to allow us to appreciatethe perfection

SO WHY DO WE COMPLAIN?

Adopting the proper perspective on our challenges can allow us to approach them with gratitude instead of annoyance. This mindset will surely produce much more favorable outcomes.